1. [Usenet: abbreviation for ‘Read The Manual’] Politer
variant of RTFM. 2. Robert Tappan Morris, perpetrator of the great Internet worm of
1988 (see Great Worm); villain to many, naive hacker
gone wrong to a few. Morris claimed that the worm that brought the
Internet to its knees was a benign experiment that got out of control as
the result of a coding error. After the storm of negative publicity that
followed this blunder, Morris's username on ITS was hacked from RTM to
RTFM.